English: Ounianga Sérir group. This astronaut photograph features one of the largest of a series of ten mostly fresh water lakes in the Ounianga Basin in the heart of the Sahara Desert of northeastern Chad. The lakes are remnants of a single large lake, probably tens of kilometers long, that once occupied this remote area approximately 14,800 to 5,500 years ago. As the climate dried out during the subsequent millennia, the lake shrank, and large, wind-driven sand dunes invaded the original depression, dividing it into several smaller basins. The area shown in this image is approximately 11 by 9 kilometers. The lakes’ dark surfaces are almost completely segregated by linear, orange sand dunes that stream into the depression from the northeast. The almost-year-round northeast winds and cloudless skies make for very high evaporation rates; an evaporation rate of more than 6 meters per year has been measured in one of the nearby lakes. Despite this, only one of the ten lakes is saline.
This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS021-E-26475.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required.See Commons:Licensing.العربية ∙ беларуская (тарашкевіца) ∙ български ∙ català ∙ čeština ∙ dansk ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ français ∙ galego ∙ magyar ∙ հայերեն ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ русский ∙ sicilianu ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−
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{{Information |Description={{en|1=This astronaut photograph features one of the largest of a series of ten mostly fresh water lakes in the Ounianga Basin in the heart of the Sahara Desert of northeastern Chad. The lakes are remnants of a single large lake
ไฟล, ounianga, lakes, from, ไฟล, ประว, ไฟล, หน, าท, ภาพน, การใช, ไฟล, วนกลาง, อม, ลเก, ยวก, บภาพขนาดของต, วอย, างน, กเซล, ความละเอ, ยดอ, กเซล, กเซล, กเซล, กเซล, กเซล, กเซล, ภาพท, ความละเอ, ยดส, งกว, 8206, กเซล, ขนาดไฟล, เมกะไบต, ชน, ดไมม, image, jpeg, ปภาพหร, . ifl prawtiifl hnathimiphaphni karichiflswnklang khxmulekiywkbphaphkhnadkhxngtwxyangni 800 531 phikesl khwamlaexiydxun 320 213 phikesl 640 425 phikesl 1 024 680 phikesl 1 280 850 phikesl 2 560 1 700 phikesl 4 288 2 848 phikesl duphaphthimikhwamlaexiydsungkwa 8206 4 288 2 848 phikesl khnadifl 3 88 emkaibt chnidimm image jpeg rupphaphhruxiflesiyngni tnchbbxyuthi khxmmxns raylaexiyddanlang epnkhxkhwamthiaesdngphlcak ifltnchbbinkhxmmxns khxmmxnsepnewbistinokhrngkarsahrbekbrwbrwmsuxesri thi khunsamarthchwyid khwamyx khaxthibayOunianga Lakes from ISS jpg English Ounianga Serir group This astronaut photograph features one of the largest of a series of ten mostly fresh water lakes in the Ounianga Basin in the heart of the Sahara Desert of northeastern Chad The lakes are remnants of a single large lake probably tens of kilometers long that once occupied this remote area approximately 14 800 to 5 500 years ago As the climate dried out during the subsequent millennia the lake shrank and large wind driven sand dunes invaded the original depression dividing it into several smaller basins The area shown in this image is approximately 11 by 9 kilometers The lakes dark surfaces are almost completely segregated by linear orange sand dunes that stream into the depression from the northeast The almost year round northeast winds and cloudless skies make for very high evaporation rates an evaporation rate of more than 6 meters per year has been measured in one of the nearby lakes Despite this only one of the ten lakes is saline wnthi Taken on 14 phvscikayn ph s 2552 13 04 UTCaehlngthima http earthobservatory nasa gov IOTD view php id 41425phusrangsrrkh NASA taaehnngthitngklxng18 55 48 29 ehnux 20 52 15 35 tawnxxk phaphniaelaphaphxun n sthanthiediywknthi OpenStreetMap18 930080 20 870930This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration NASA under Photo ID ISS021 E 26475 This tag does not indicate the copyright status of the attached work A normal copyright tag is still required See Commons Licensing العربية belaruskaya tarashkevica blgarski catala cestina dansk Deutsch English espanol فارسی francais galego magyar հայերեն Bahasa Indonesia italiano 日本語 makedonski മലയ ള Nederlands polski portugues russkij sicilianu Turkce ukrayinska 简体中文 繁體中文 karxnuyatichsiththi Public domain Public domain false falseThis file is in the public domain in the United States because it was created by the Image Science amp Analysis Laboratory of the NASA Johnson Space Center NASA copyright policy states that NASA material is not protected by copyright unless noted NASA media use guidelines or Conditions of Use of Astronaut Photographs Photo source ISS021 E 26475 العربي ة Deutsch English espanol francais italiano kurdi makedonski മലയ ള portugues sicilianu AnnotationsInfoFieldThis image is annotated View the annotations at Commons1726 1748 504 182 4288 2848 lake water 772 1684 252 129 4288 2848 floating reed beds 2466 681 86 172 4288 2848 linear sand dune 2023 2290 657 338 4288 2848 Ounianga Serir 1978 1453 322 225 4288 2848 Lake Telikhabrryayodyyxithyephimkhabrryaythrrthdediywephuxkhyaykhwamwaiflnimixairixethmthiaesdngxyuiniflniprakxbdwysthanalikhsiththisatharnsmbtidetermination method xngkvs work of the federal government of the United States xngkvswnthisrang wnkxtng14 phvscikayn 2009catalog code xngkvsISS021 E 26475aekhttalxk Media catalogue of the Johnson Space Center xngkvsehtukarnsakhyExpedition 21 xngkvscoordinates of the point of view xngkvs18 55 48 29 N 20 52 15 35 Eheading xngkvs 0 xngsabnthukphaphdwyNikon D2Xs xngkvsexposure time xngkvs0 002 winathif number xngkvs5 6focal length xngkvs800 milliemtrISO speed xngkvs100epnphaphthay prawtiifl khlikwnthi ewlaephuxduiflthipraktinkhnann wnthi ewlarupyxkhnadphuichkhwamehn pccubn19 33 8 phvscikayn 25634 288 2 848 3 88 emkaibt Ras67new rendered in high quality and native resolution from NASA 039 s raw image data 03 10 3 thnwakhm 25521 440 960 316 kiolibt Monfornotrotated north up 03 08 3 thnwakhm 25521 440 960 316 kiolibt Monfornot Information Description en 1 This astronaut photograph features one of the largest of a series of ten mostly fresh water lakes in the Ounianga Basin in the heart of the Sahara Desert of northeastern Chad The lakes are remnants of a single large lake hnathimiphaphni hnatxipni oyngmathiphaphni raychuxaehlngmrdkolkinthwipaexfrika raychuxaehlngmrdkolkinpraethschad karichiflswnklang wikixuntxipniichiflni karichbn ar wikipedia org بحيرات أونيانجا karichbn ast wikipedia org Llagos de Unianga karichbn avk wikipedia org Tamavafa gadakiewega koe Tcada Ounianga uzdeem karichbn az wikipedia org Unianqa golleri karichbn de wikipedia org Seen von Ounianga Teli See Nubischer Sandstein Aquifer Benutzer Schneffe himself 2014 Welterbe im Tschad karichbn de wikivoyage org Welterbe Afrika Welterbe im Tschad karichbn en wikipedia org Geography of Chad Lakes of Ounianga African humid period karichbn en wikiversity org Orbital platforms karichbn eo wikipedia org Lagoj Unianga Nubia sabloŝtona akvejo karichbn es wikipedia org Lagos de Unianga Periodo humedo de Africa karichbn fa wikipedia org دریاچه های اونیانگا karichbn fi wikipedia org Ouniangan jarvet karichbn fr wikipedia org Lacs d Ounianga Lac Teli Liste du patrimoine mondial au Tchad karichbn fr wikivoyage org Patrimoine mondial au Tchad karichbn he wikipedia org אגמי אוניאנגה karichbn he wikivoyage org אתרי מורשת עולמית אפריקה karichbn hr wikipedia org Ounianga karichbn it wikipedia org Ciad Laghi di Ounianga Patrimoni dell umanita del Ciad karichbn it wikivoyage org Patrimoni mondiali dell umanita in Ciad karichbn ja wikipedia org ウニアンガ湖群 karichbn ka wikipedia org უნიანგის ტბები karichbn lt wikipedia org Uniangos ezerai karichbn nl wikipedia org Meren van Ounianga karichbn pl wikipedia org Jeziora Ounianga karichbn pt wikipedia org Lagos de Ounianga karichbn ru wikipedia org Unianga karichbn so wikipedia org Jad karichbn sv wikipedia org Ouniangasjoarna karichbn tr wikipedia org Ounianga Golleri karichbn www wikidata org Q2402161 karichbn zh wikipedia org 乌尼昂加湖泊群khxmulekiywkbphaph phaphnimikhxmulephimetim sungswnihymacakklxngdicitxlhruxsaeknenxrthisamarthekbkhxmuldngklawiwrwmkbphaphid thaphaphnithukprbprungaekikhhruxepliynaeplngcakedim khxmulbangxyangcayngkhngimepliynaeplngehmuxnphaphthithukprbprungaekikhnnphuphlitklxngNIKON CORPORATIONrunkhxngklxngNIKON D2Xsewlaepidhnaklxng1 500 winathi 0 002 khaexff 5 6xtrakhwamerw ISO100ewlathibnthukphaph13 04 14 phvscikayn 2552khwamyawofkselns800 mm karcdwangphaphpktikhwamlaexiydaenwnxn240 dpikhwamlaexiydaenwtng240 dpisxftaewrthiichAdobe Photoshopaekikhphaphlasud13 13 8 phvscikayn 2563opraekrmexksophechxrkahndrurbaesngepnhlk a khwamerwchtetxr8 965784kharurbaesng A 4 970854karchdechyaesng0rurbaesngkwangsud5 APEX f 5 66 ohmdkarwdaesngaephtethirnaeflchimichaeflchsepssisRGBrayaofksinfilm 35 mm 1 200 mm ekhathungcak https th wikipedia org wiki ifl Ounianga Lakes from ISS jpg, wikipedia, วิกิ หนังสือ, หนังสือ, ห้องสมุด,
